/*
 * Copyright (C) 2015 MediaTek Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#include "mtk-phy.h"
#ifdef CONFIG_U3D_HAL_SUPPORT
#include "mu3d_hal_osal.h"
#endif

#include <lk/api.h>

#define os_readl(addr)  (*((volatile uint32_t *)(addr)))

#define os_writel(addr, data) {\
        (*((volatile uint32_t*)(addr)) = (uint32_t)data); }
#if 0
        if (0) \
                pr_debug("****** os_writel [0x%08x] = 0x%08x (%s#%d)\n", (unsigned int)addr, data, __func__, __LINE__);\
        }
#endif

#define os_writelmsk(addr, data, msk) \
        { os_writel(addr, ((os_readl(addr) & ~(msk)) | ((data) & (msk)))); \
        }

PHY_INT32 U3PhyWriteReg32(u3phy_addr_t addr, PHY_UINT32 data)
{
#if 0
	os_printk(K_DEBUG, "%s addr=%llx, data=%x\n", __func__, (unsigned long long)addr, data);
#endif

	video_printf("USB: WRITE32 0x%08x = 0x%08x\n", addr,data);

	*((volatile uint32_t*)addr) = data;
	return 0;
}

PHY_INT32 U3PhyReadReg32(u3phy_addr_t addr)
{
	return *((volatile uint32_t*)addr);
}

PHY_INT32 U3PhyWriteReg8(u3phy_addr_t addr, PHY_UINT8 data)
{
	os_writelmsk((addr & ALIGN_MASK), data << ((addr % 4) * 8), 0xff << ((addr % 4) * 8));
	__asm__ __volatile__("dsb":::"memory");

	return 0;
}

PHY_INT8 U3PhyReadReg8(u3phy_addr_t addr)
{
	return ((*(volatile uint32_t*)(addr & ALIGN_MASK)) >> ((addr % 4) * 8)) & 0xff;
}
